Originally Posted by Halting
There's nothing better than the traditional alert system.
Yeha you need an Alert System. I wouldn't, myself, use Habbo Alerts (hobba/mod alerts) - instead I would use Javascript Alerts.
Well heres an outline:-
You need a form where someone can submit a message.
An iFrame on the page you want the alert to appear on.
The contents of the Iframe must refresh every 60 seconds and must show the message that was submitted in an alert. Aka, for a java alert it would be alert("$message");.
After 60 seconds, you will need a code to delete this from the database. Or, create a table so once the user has seen the alert, it deletes it from the database.